[MacPorts] #43123: Install amavisd-new fails to build pre-req p5.12-mail-clamav

[MacPorts]

#43123: Install amavisd-new fails to build pre-req p5.12-mail-clamav
---------------------------+--------------------------------
 Reporter:  horst.simon@…  |      Owner:  macports-tickets@…
     Type:  defect         |     Status:  new
 Priority:  Normal         |  Milestone:
Component:  ports          |    Version:  2.2.1
 Keywords:                 |       Port:  p5.12-mail-clamav
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 The latest command line tools include a newer version of clang that’s
 stricter about unused arguments.
 Where before it was only a warning, now it is an error.
 pre-req p5.12-mail-clamav build for amavisd-new fails with clang error
 unknown option

 :info:build clang: error: unknown argument: '-R/opt/local/lib' [-Wunused-
 command-line-argument-hard-error-in-future]
 :info:build clang: note: this will be a hard error (cannot be downgraded
 to a warning) in the future

 I am using OS/X Maverick 10.9.2 witch latest Xcode and command line tools
 from March 2014.

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Ticket URL: <https://trac.macports.org/ticket/43123>
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